Finding the Fourth Proportional to 46,667.16, 69,980.13 and 13,379.67

Step by Step Solution

1. Step 1: Write the proportion equation
   46,667.16 : 69,980.13 = 13,379.67 : x
2. Step 2: Convert to fraction form
   46,667.16/69,980.13 = 13,379.67/x
3. Step 3: Cross multiply
   46,667.16x = 69,980.13 × 13,379.67
4. Step 4: Simplify right side
   46,667.16x = 936,311,045.96
5. Step 5: Solve for x
   x = 936,311,045.96/46,667.16
6. Step 6: Final answer
   x = 20,063.60